---
title: 'GPU Performance Engineer at Genmo'
canonical: 'https://feeny.ai/job/gpu-performance-engineer-genmo-san-francisco-5bh8v1qprvfz'
type: 'job'
last_seen: '2026-09-12'
---

# GPU Performance Engineer at Genmo

- **Company:** Genmo
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Posted:** 2025-07-17
- **Last confirmed live:** 2026-09-12
- **Apply:** https://jobs.ashbyhq.com/genmo/14aaaa71-7c0c-4352-9c6c-bf3f12f3aeb5

## Job description

We are Genmo, a research lab developing the world’s most sophisticated video world models to understand, simulate, and interact with the physical world. Our mission is to unlock the right brain of AGI. Join us in advancing physical intelligence and enabling robots to learn and act in a changing world. We're seeking a GPU Performance Engineer to squeeze every last FLOP from our H100 infrastructure and optimize our model serving stack to its absolute limits.

## The Role

You'll be our performance optimization expert, using advanced profiling tools to identify bottlenecks and implementing solutions that achieve 5-10x speedups. From writing custom CUDA kernels to eliminating cold start latency, you'll ensure our infrastructure delivers world-class performance. This role is perfect for someone who gets excited about microsecond optimizations and pushing hardware to its theoretical limits.

## Key Responsibilities

- Profile and optimize GPU workloads using Nsight Systems, nvprof, and custom instrumentation
- Write high-performance CUDA and Triton kernels for critical model operations
- Optimize cold start latency from seconds to milliseconds for our serving infrastructure
- Tune memory access patterns, kernel fusion, and GPU utilization
- Collaborate with ML engineers to optimize model implementations
- Debug performance issues across the full stack from application to hardware
- Implement custom memory pooling and allocation strategies
- Share optimization techniques and build performance culture across teams

## Qualifications

- Bachelor's or Master's degree in Computer Science, Electrical Engineering, or related field
- 5+ years systems programming experience with 3+ years focused on GPU optimization
- Expert proficiency with GPU profiling tools (Nsight Systems, nvprof)
- Strong CUDA programming skills with production kernel development
- Deep understanding of GPU architecture (memory hierarchy, SMs, warps)
- Track record of achieving significant performance improvements (5-10x)
- Experience with Python and C++ in production environments

We Value

- Experience with Triton kernel development
- Knowledge of CUTLASS or similar high-performance libraries
- Background in ML-specific optimizations (attention, transformers)
- RDMA/InfiniBand optimization experience
- Contributions to GPU libraries or frameworks
- Low-level debugging skills (PTX/SASS reading)

Genmo is an Equal Opportunity Employer. Candidates are evaluated without regard to age, race, color, religion, sex, disability, national origin, sexual orientation, veteran status, or any other characteristic protected by federal or state law. Genmo, Inc. is an E-Verify company and you may review the [Notice of E-Verify Participation](https://drive.google.com/file/d/1urlF3XKQTw83aJfpMKMwrUP1E1mUlNTO/view?usp=sharing) and the [Right to Work posters in English and Spanish](https://drive.google.com/file/d/1ZD4zax6Li8oTN_VHd9w3rpFPoWeaeGVO/view?usp=drive_link).

## About Genmo

## Company Overview
- **One-liner**: Genmo is an AI research lab developing open-source state-of-the-art video generation models to unlock visual understanding for artificial general intelligence.
- **Entity Type**: Private (Series A, raised $58.4M total)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2022 (GitHub organization created December 2022) [github.com](https://github.com/genmoai)
- **Founders**: Paras Jain (Co-founder and CEO) [linkedin.com](https://www.linkedin.com/company/genmoai)

## Core Business
- Primary industry: Artificial intelligence / Generative media
- Target customers: B2B & B2C – developers, researchers, and content creators who use open-source models or the company’s interactive playground
- Mission or purpose: “Building open, state-of-the-art models for video generation towards unlocking the right brain of AGI.” [genmo.ai/careers](https://www.genmo.ai/careers)

## Products & Services
- **Mochi 1**: Open-source text-to-video model that turns written concepts into visual stories. Available via GitHub and ComfyUI for local customization and inference. [genmo.ai](https://www.genmo.ai/)
- **Playground**: Interactive web platform for testing and exploring the capabilities of Mochi without needing to run the model locally.
- **Research Publications**: The lab publishes interpretability and performance research on video diffusion models (e.g., internal behavior analysis of open-source video models). [linkedin.com](https://www.linkedin.com/company/genmoai)

## Market Standing
- **Valuation/Market Cap**: Not publicly available
- **Key Metric (Funding)**: $58.4M total funding across two rounds – a $30M venture round (Feb 2024) and a $28.4M Series A (Oct 2024), both led by New Enterprise Associates (NEA). [linkedin.com](https://www.linkedin.com/company/genmoai)
- **Notable Investors/Partners**: New Enterprise Associates (NEA)
- **Growth Signals**: 
  - Rapidly growing GitHub stars – Mochi repository has over 3,600 stars. [github.com](https://github.com/genmoai)
  - Recently hired several PhD-level researchers (Yue Fan, Yao Fu, Shyam) and a Member of Technical Staff. [linkedin.com](https://www.linkedin.com/company/genmoai)
  - Active job postings for research, engineering, and design roles (5 open positions as of mid-2025). [jobs.ashbyhq.com](https://jobs.ashbyhq.com/genmo)

## Competitive Advantages
- **Open‑source leadership**: Mochi 1 is considered a new state‑of‑the‑art in open text‑to‑video, offering a transparent alternative to closed models.
- **Research‑first culture**: The team focuses on fundamental advances in video world models, with published interpretability work.
- **Early mover in open‑source video generation**: Few competitors offer a comparable open‑source video model with active community and playground.

## Strategic Focus
- Continue advancing the capabilities of video world models to understand the physical world.
- Expand the open‑source ecosystem around Mochi, enabling broader customization and community contributions.
- Hire top research scientists (diffusion, post‑training) and engineering talent (GPU performance, research engineering) to accelerate model development. [genmo.ai/careers](https://www.genmo.ai/careers)

## Why Work Here
- **Benefits**: Fully paid health, dental, and vision insurance; 4% 401(k) matching; unlimited PTO and sick time; daily free lunch and dinner; commuter subsidy. [genmo.ai/careers](https://www.genmo.ai/careers)
- **Culture**: Small, research‑driven team (approx. 11 employees) with a flat structure and direct impact on cutting‑edge AI.
- **Office & Remote**: San Francisco HQ; roles listed as “San Francisco HQ · Full Time” – likely requires in‑office presence with commuter support.
- **Engineering culture**: Opportunity to work on large‑scale distributed training, GPU optimization, and open‑source contributions. Recent hires from top labs (Cohere, Leonardo.Ai, Microsoft, NVIDIA). [linkedin.com](https://www.linkedin.com/company/genmoai)

## Sources
1. [genmo.ai](https://www.genmo.ai/) – Company homepage, product overview, open source details
2. [genmo.ai/careers](https://www.genmo.ai/careers) – Careers page, benefits, open roles
3. [linkedin.com](https://www.linkedin.com/company/genmoai) – Company financials, headcount, recent hires, office locations
4. [github.com](https://github.com/genmoai) – GitHub organization, Mochi repository stars and description
5. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/genmo) – Active job listings (Research Scientist, GPU Engineer, Founding Product Designer)

## Other roles at Genmo

- [Research Scientist (post-training)](https://feeny.ai/job/research-scientist-post-training-genmo-san-francisco-34hk5d2bfb26) — San Francisco, CA
- [Research Scientist (diffusion)](https://feeny.ai/job/research-scientist-diffusion-genmo-san-francisco-7d4n8smdbgqd) — San Francisco, CA
- [Research Engineer (New Grad)](https://feeny.ai/job/research-engineer-new-grad-genmo-san-francisco-vj3dwx33v5ry) — San Francisco, CA
- [Founding Product Designer](https://feeny.ai/job/founding-product-designer-genmo-san-francisco-sats5vbhy81z) — San Francisco, CA